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Side-by-side financial comparison of Duolingo, Inc. (DUOL) and GLAUKOS Corp (GKOS). Click either name above to swap in a different company.

Duolingo, Inc. is the larger business by last-quarter revenue ($282.9M vs $150.6M, roughly 1.9× GLAUKOS Corp). Duolingo, Inc. runs the higher net margin — 14.8% vs 6.2%, a 8.6% gap on every dollar of revenue. On growth, GLAUKOS Corp posted the faster year-over-year revenue change (41.2% vs 35.0%). Over the past eight quarters, Duolingo, Inc.'s revenue compounded faster (29.9% CAGR vs 25.4%).

Duolingo, Inc. is a leading global edtech firm operating a gamified language learning platform. It offers free and premium self-paced courses for over 40 languages, plus language certification, math learning tools, and literacy programs, serving individual learners, schools and corporate clients worldwide.

Glaukos Corp is a medical technology company focused on ophthalmology, developing and commercializing minimally invasive surgical devices, prescription pharmaceuticals and consumer products for glaucoma, corneal diseases and other eye disorders. It operates primarily across North America, Europe and Asia Pacific, serving hospitals, ophthalmology clinics and patients worldwide.

DUOL vs GKOS — Head-to-Head

Bigger by revenue
DUOL
DUOL
1.9× larger
DUOL
$282.9M
$150.6M
GKOS
Growing faster (revenue YoY)
GKOS
GKOS
+6.2% gap
GKOS
41.2%
35.0%
DUOL
Higher net margin
DUOL
DUOL
8.6% more per $
DUOL
14.8%
6.2%
GKOS
Faster 2-yr revenue CAGR
DUOL
DUOL
Annualised
DUOL
29.9%
25.4%
GKOS

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
DUOL
DUOL
GKOS
GKOS
Revenue
$282.9M
$150.6M
Net Profit
$42.0M
$9.4M
Gross Margin
72.8%
77.9%
Operating Margin
15.4%
9.0%
Net Margin
14.8%
6.2%
Revenue YoY
35.0%
41.2%
Net Profit YoY
201.7%
EPS (diluted)
$0.99

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
DUOL
DUOL
GKOS
GKOS
Q1 26
$150.6M
Q4 25
$282.9M
$143.1M
Q3 25
$271.7M
$133.5M
Q2 25
$252.3M
$124.1M
Q1 25
$230.7M
$106.7M
Q4 24
$209.6M
$105.5M
Q3 24
$192.6M
$96.7M
Q2 24
$178.3M
$95.7M
Net Profit
DUOL
DUOL
GKOS
GKOS
Q1 26
$9.4M
Q4 25
$42.0M
$-133.7M
Q3 25
$292.2M
$-16.2M
Q2 25
$44.8M
$-19.7M
Q1 25
$35.1M
$-18.1M
Q4 24
$13.9M
$-33.6M
Q3 24
$23.4M
$-21.4M
Q2 24
$24.4M
$-50.5M
Gross Margin
DUOL
DUOL
GKOS
GKOS
Q1 26
77.9%
Q4 25
72.8%
-1.1%
Q3 25
72.5%
78.4%
Q2 25
72.4%
78.3%
Q1 25
71.1%
77.2%
Q4 24
71.9%
72.9%
Q3 24
72.9%
76.6%
Q2 24
73.4%
76.4%
Operating Margin
DUOL
DUOL
GKOS
GKOS
Q1 26
9.0%
Q4 25
15.4%
-97.7%
Q3 25
12.9%
-12.3%
Q2 25
13.2%
-18.3%
Q1 25
10.2%
-19.4%
Q4 24
6.6%
-27.2%
Q3 24
7.0%
-25.5%
Q2 24
10.5%
-31.3%
Net Margin
DUOL
DUOL
GKOS
GKOS
Q1 26
6.2%
Q4 25
14.8%
-93.4%
Q3 25
107.5%
-12.2%
Q2 25
17.8%
-15.8%
Q1 25
15.2%
-17.0%
Q4 24
6.6%
-31.8%
Q3 24
12.1%
-22.1%
Q2 24
13.7%
-52.8%
EPS (diluted)
DUOL
DUOL
GKOS
GKOS
Q1 26
Q4 25
$0.99
$-2.34
Q3 25
$5.95
$-0.28
Q2 25
$0.91
$-0.34
Q1 25
$0.72
$-0.32
Q4 24
$0.31
$-0.56
Q3 24
$0.49
$-0.39
Q2 24
$0.51
$-1.00

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
DUOL
DUOL
GKOS
GKOS
Cash + ST InvestmentsLiquidity on hand
$1.0B
$276.7M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.3B
$670.9M
Total Assets
$2.0B
$893.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DUOL
DUOL
GKOS
GKOS
Q1 26
$276.7M
Q4 25
$1.0B
$90.8M
Q3 25
$1.0B
$98.2M
Q2 25
$976.2M
$100.8M
Q1 25
$884.0M
$114.3M
Q4 24
$785.8M
$169.6M
Q3 24
$854.4M
$100.1M
Q2 24
$888.2M
$68.1M
Stockholders' Equity
DUOL
DUOL
GKOS
GKOS
Q1 26
$670.9M
Q4 25
$1.3B
$656.2M
Q3 25
$1.3B
$769.5M
Q2 25
$977.0M
$765.1M
Q1 25
$893.8M
$764.0M
Q4 24
$824.5M
$766.9M
Q3 24
$822.5M
$668.5M
Q2 24
$766.9M
$665.2M
Total Assets
DUOL
DUOL
GKOS
GKOS
Q1 26
$893.3M
Q4 25
$2.0B
$893.5M
Q3 25
$1.9B
$999.4M
Q2 25
$1.5B
$987.0M
Q1 25
$1.4B
$966.2M
Q4 24
$1.3B
$974.8M
Q3 24
$1.2B
$926.5M
Q2 24
$1.1B
$919.7M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
DUOL
DUOL
GKOS
GKOS
Operating Cash FlowLast quarter
$107.3M
Free Cash FlowOCF − Capex
$96.6M
FCF MarginFCF / Revenue
34.1%
Capex IntensityCapex / Revenue
3.8%
Cash ConversionOCF / Net Profit
2.56×
TTM Free Cash FlowTrailing 4 quarters
$369.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DUOL
DUOL
GKOS
GKOS
Q1 26
Q4 25
$107.3M
$6.8M
Q3 25
$84.2M
$-10.1M
Q2 25
$90.7M
$7.0M
Q1 25
$105.6M
$-18.5M
Q4 24
$83.3M
$507.0K
Q3 24
$56.3M
$-9.6M
Q2 24
$62.4M
$-18.4M
Free Cash Flow
DUOL
DUOL
GKOS
GKOS
Q1 26
Q4 25
$96.6M
$3.9M
Q3 25
$79.4M
$-11.7M
Q2 25
$89.5M
$5.8M
Q1 25
$104.3M
$-20.5M
Q4 24
$81.4M
$-1.2M
Q3 24
$53.1M
$-11.0M
Q2 24
$56.8M
$-20.5M
FCF Margin
DUOL
DUOL
GKOS
GKOS
Q1 26
Q4 25
34.1%
2.7%
Q3 25
29.2%
-8.8%
Q2 25
35.5%
4.7%
Q1 25
45.2%
-19.2%
Q4 24
38.8%
-1.2%
Q3 24
27.6%
-11.4%
Q2 24
31.9%
-21.4%
Capex Intensity
DUOL
DUOL
GKOS
GKOS
Q1 26
Q4 25
3.8%
2.0%
Q3 25
1.8%
1.2%
Q2 25
0.5%
0.9%
Q1 25
0.6%
1.8%
Q4 24
0.9%
1.6%
Q3 24
1.7%
1.5%
Q2 24
3.1%
2.2%
Cash Conversion
DUOL
DUOL
GKOS
GKOS
Q1 26
Q4 25
2.56×
Q3 25
0.29×
Q2 25
2.02×
Q1 25
3.01×
Q4 24
5.99×
Q3 24
2.41×
Q2 24
2.56×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

DUOL
DUOL

License And Service$242.3M86%
Advertising$20.2M7%
English Test$10.3M4%
Other$10.1M4%

GKOS
GKOS

Segment breakdown not available.

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